● Loops, stubs and T-branches are possible.
● You may only connect external alarm indicators to
one
detector.
● Permissible cables for detectors with more than one external alarm indicator
according to the collective connection diagram may be migrated to the FDnet/
C-NET without any changes.
● Note document 001508 for installation (calculation of the capacity layer).
3.3.1.1 Use of unshielded cables
The connection is established from base to base using twisted or non-twisted wire
pairs.
LINE
+
-
-
+
1
2
3
4
2
+
4
+
LINE
++
__
+
_
LINE
++
__
+
_
LINE
++
__
+
_
LINE
++
__
+
_
LINE
++
__
+
_
Figure 12: Connection diagram for addressed detector line with and without external alarm indicators
(without shielded cables)
1 Control panel 3 Auxiliary terminals DBZ1190‑xx
2 Detector 4 External alarm indicator
3.3.1.2 Use of shielded cables
The detector line shielding must be connected through in the detector base with
auxiliary terminals DBZ1190-xx.
Mounting/Installation
Electrical connection
3
A6V10332811_e_en_-- 15 | 44
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